"Operations trials of the Severodvinsk submarine are over and the submarine is ready to fulfill its designated missions. The Severodvinsk’s crew is currently completing measures necessary to put the submarine into service and to take to sea for planned combat training sessions," he said.

He said the crew has fulfilled all elements of basic training. "The Severodvinsk multi-purpose submarine has completed operational trials, including deep submergences. The crew has drilled the skills to operate surfacing escape chamber," Serga said.